Cong Nghe Sach Joint Stock Company Address: No 67/2, Van Cao Street, Lieu Giai Ward, Lieu Giai Ward, Ba Dinh District, Ha Noi City Enterprise code: 0101137071 Phone: 0247625760 Representative: Nguyen Thu Ha Adress: Nha 3, 13/16 Doc Tam Da Alley, Thuy Khue Ward, Tay Ho District, Ha Noi City Lieu Giai Ward, Ba Dinh District, Ha Noi CityFounding date: 28 - 6 - 2001